06 300 SRT8 TCM update - Chrysler 300C Forum: 300C & SRT8 Forums
1st Gen SRT8-Specific General Discussion General Discussion specific to the SRT8 models. If your topic is not specific to the SRT8, please post it in the All Models Forums.

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 02-03-2013, 08:07 PM Thread Starter
Member
Points: 3,382, Level: 1 Points: 3,382, Level: 1 Points: 3,382, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 0% Activity: 0% Activity: 0%
 
Car: 2006 Chrysler 300 SRT8
Join Date: Sep 2012
Location: Brockton, Massachusetts
Posts: 62
Thanks: 7
Thanked 2 Times in 2 Posts
06 300 SRT8 TCM update

Is there an update for our TCM? I thought I read some where that Chrysler was reflashing these with an update but now I can't find it.

wet300SRT8 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 02-04-2013, 07:01 AM
Super Moderator
Points: 61,361, Level: 1 Points: 61,361, Level: 1 Points: 61,361, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 100% Activity: 100% Activity: 100%
 
MADDOG's Avatar
 
Car: 2006 Chrysler SRT8
Join Date: Apr 2007
Location: Oregon
Posts: 15,336
Thanks: 344
Thanked 1,944 Times in 1,756 Posts
Garage
There was a TCM flash to correct a 1 - 2 upshift problem issued in 2006 or 2007. Others may have been issued but that is the only one I had done.

All the TSB's are listed here:

Complete TSB list from 300c forum - Dodge Charger Forums

Michael
2006 300C SRT8
MADDOG is online now  
post #3 of 3 (permalink) Old 02-04-2013, 01:42 PM
Chrysler Customer Service Agent
Points: 4,455, Level: 1 Points: 4,455, Level: 1 Points: 4,455, Level: 1
Level up: 99% Level up: 99% Level up: 99%
Activity: 10% Activity: 10% Activity: 10%
 
ChryslerCares's Avatar
 
Car:
Join Date: Jul 2011
Location: Auburn Hills
Posts: 696
Thanks: 86
Thanked 206 Times in 153 Posts
Looks there are 2 TSBs related to TCM Software:

21-020-06

SUBJECT:
Flash: SRT 8 - Delayed Or Rough 1-2 shift at Wide Open Throttle After Kickdown

OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.

MODELS:
2005 - 2006 (LX) 300 SRT 8/ Charger SRT 8/ Magnum SRT 8
2005 - 2006 (LE/LX) Chrysler SRT 8/ Chrysler Touring SRT 8
(International Markets)
2006 (WK) Grand Cherokee SRT8
2006 (WH) Grand Cherokee SRT8 (International Markets)

SYMPTOM/CONDITION:
The customer may experience a delayed 1-2 shift at wide open throttle after a kickdown. This is often referred to as a harsh or jerky shift which is the result of the engine reaching the maximum engine speed fuel cut off prior to the transmission shifting.

NOTE: This flash will also change the strategy for the “Autostick” feature. This version will allow the transmission to upshift when the maximum engine speed is reached. The previous version would not allow the upshift unless the driver selected the next gear. Once the flash is performed, all of the changes are permanent and cannot be reversed.

18-031-05

SUBJECT:
Flash: Shift Hesitation During Wide Open Throttle

OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.

MODELS:
2005 - 2006 (LX) Chrysler 300, Magnum, Charger SRT-8

NOTE: This bulletin applies to vehicles equipped with a 6.1L engine (sales code ESF) and a NAG1 automatic transmission (sales code DGJ) built on or before July 25, 2005.

DISCUSSION:
Randomly during a wide open throttle condition the engine RPM goes beyond the fuel cutoff point before the 1-2 upshift is made. This causes a short hard bump at the beginning of the shift. It is more likely to occur if the vehicle is traveling around 15 MPH and then the throttle is pushed to wide open (WOT).
This condition is caused by the TCM not being able to calculate the correct engine speed at which to initiate the shift.
ChryslerCares is offline  
The Following 2 Users Say Thank You to ChryslerCares For This Useful Post:
MADDOG (02-04-2013), wet300SRT8 (02-11-2013)
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
1st time out SRT8 update: 12.74@110 ! oldskool Track Talk 3 12-04-2008 07:25 AM
Srt8 Update Pictures G.I. Hemi General Discussion 24 06-11-2007 05:27 PM
Update on my New SS SRT8 Jaybo 1st Gen SRT8-Specific General Discussion 13 04-19-2007 11:13 PM
SRT8 Update Steve Desjardins General Discussion 1 03-08-2006 01:21 PM
UPDATE SRT8 vs. CTS-V HalV48 1st Gen SRT8-Specific General Discussion 6 11-22-2005 08:55 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
Inactive Reminders By Icora Web Design